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What is QuickBooks error 176109
QuickBooks error 176109 is also called invalid point of sale. When the user opens the QuickBooks Point of Sale, then QuickBooks wants to be given sufficient permission to read and write the file without any hassle or interruption. When it cannot find it then it shows error 176109. If sufficient permissions are given to it then there is no chance of error show. It is very easy to fix this error, you can fix the error by understanding some of the given points.
Why does QuickBooks Error 176109 occur?
This is due to some QuickBooks error 176109, you can read it carefully.
When the contents of the Point of Sale Entitlement folder are missing or damaged.
The product code or product number is used to install the QuickBooks Point of Sale to QuickBooks Desktop. If this code used is incorrect then QuickBooks Error 176109 error will appear.
When the user doesn’t have administrative level permission to access the files.
Solution to fix Quickbooks error 176109
The easiest way is being given to fix the error. Just need to understand and follow the solution carefully.
The contents of the entitlement client folder will have to be deleted
Using windows explorer, follow the pathway C:\Program Data\Intuit\Entitlement Client\v8.
Press Ctrl + A to select all the files.
Then click on Delete.
Click on Yes to confirm the action.
Now open the QuickBooks Point of Sale and re-register the application.

Rename WS Activity file
Using windows explorer, follow the pathway C:\Program Data\Intuit\QuickBooks Point of Sale XX\Ini.
Right, click on WS Activity.
Select Rename.
Enter OLD WS Activity and click anywhere to Save.
Now close the windows.
Delete the entitlement folder.
Now relaunch the QuickBooks Point of Sale.

Clean install QuickBooks Point of Sale.
If this solution does not solve this problem, then QuickBooks Point of Sale should be reinstalled, before doing a clean install, make a backup of the files and save it. If you do not know how to reinstall QuickBooks or have other problems, then you can understand the points given below.
Step 1: Uninstall QuickBooks Point of Sale
Go to the control panel.
Click on Program and Features.
In the list of Programs, select QuickBooks Point of Sale.
Then click on uninstall.
Follow the prompts to complete the process.
Step 2: Rename all the Point of Sale Folders
Add OLD at the end of each folder. This prevents QuickBooks from recognizing the folders in order to create a new one.
Step 3: Re-install the Point of Sale
Now you have to reinstall QuickBooks Point of Sale. If there is any problem in installing then you can follow Install QuickBooks Point of Sale.
Step 4: Restore the company files
Open QuickBooks Point of Sale, create a new company file. Restore the backup created.
Open Point of Sale to verify whether the issue is resolved.
Register QuickBooks Point of Sale again.
What triggers Error 176109 in QuickBooks?
Now that you know what this error is all about, it is time to find out the triggers to QuickBooks point of sale error 176109.
The very first cause of this error can be, when the contents of the point of sale entitlement folder are missing or get damaged somehow.
Another factor causing the issue can be when the product number or product code is used for installing the QuickBooks Point of sale to QB Desktop. And if by any chance, a wrong code is used, these types of errors are likely to appear.
One more trigger to the point of sale error can be accessing the files without admin permissions

By knowing all these steps and processes, you can easily fix the error. It was a complete solution, hope you liked this information and there will be no doubt.